求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1
问题描述:
求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1
f(X)满足f(0)=f(4)m<0,n<0,求(√-m)2 (√-n)2
答
an=2a(n-1) (n 2)/【n(n 1)】(n≥2,n∈n*)对比a^2c c^2a ab(a-2b) bc(c-2b)对比f(x)=log9(x 8-α/x)在[1,正∞)include